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Cladonia merochlorophaea Asah.
Family: Cladoniaceae
Cladonia merochlorophaea image
Stephen Sharnoff  
Ecology: Terricolous or lignicolous; growing sun-exposed or partially shaded; substrate non-calciferous. Thallus: Crustose, squamulose; lobes ascending or horizontal; branches densely aggregated, scattered, loosely aggregated, or clustered; separate thallus parts 1-3 mm long; .5-1.5 mm wide. Primary Thallus: Persistent. Secondary Thallus: Present, arising from center of the primary thallus or arising from edge of the primary thallus, of determinate growth; stipe 10-25 mm high, 1-2 mm wide, olive or brown (yellowish- or olive brown (77, 94) or dark greyish yellow (91)), homogeneously coloured, corticate (on lower half to 3/4 of podetium), with intact wall. Thallus Outline: Margin crenulate. Upper Surface: Verruculose or areolated, olive or brown; not sorediate. Lower Surface: White or grey. Lower Cortex: Absent. Ascocarps: Forming along the margin of scyphi, moderately abundant, .3-1.5 mm in diam.. Disk: Weakly convex to strongly convex; brown. Conidiomata: Formed on margins of scyphi or on primary squamules. Secondary Metabolites: 4-O-methylcryptochlorophaeic acid, merochlorophaeic acid, and fumarprotocetraric acid, of the following substance class(es): orcinol depsides and ß-orcinol depsidones. Spot Tests: Upper surface: K – (negative), C + pink, KC + pink, PD – or + red. UV-Fluorescence: Reaction colour: bright bluish white.